Precision-Engineered NM250/XMAX250 Top End Rebuild Kit

High-grade 70mm aluminum alloy piston with reinforced skirt design for maximum durability under extreme heat and pressure. CNC-machined cylinder gaskets from multi-layer steel ensure perfect compression seal.

Direct OEM replacement kit includes piston rings, wrist pin, circlips, and base gasket - all manufactured to Yamaha"s exact torque specifications. Compatible with 250CC engines requiring 70mm bore.

Ideal for mechanics rebuilding water-cooled 2-stroke engines in off-road bikes, scooters, and recreational ATVs. Reduces oil consumption while restoring factory compression levels.

Batch-tested components meet JIS D9421 standards. Ships in anti-corrosion packaging with installation guidelines. Wholesale pricing available for garage workshops and parts resellers.